Ovinix / Services / Mobile apps
05

Mobile apps that feel like they were built native.

iOS, Android, one codebase, no compromises. Offline-first, push-ready, store-hardened. The kind of app where users don’t notice it’s React Native.

[ Why this exists ]

The problem

The cross-platform shortcut usually shows. Janky scroll, half-baked offline, push notifications that arrive in the wrong language, an app store rejection two days before launch.

Done right, the seam disappears. One team, one codebase, two stores — with the polish people associate with Swift and Kotlin. We pick the boring path that gets you there.

Users don’t care what your app is built with. They care that the back button works.
[ What we do ]

What “native-feel” actually means.

In rough order of how often it gets skipped.

01

60fps scroll, every list

FlashList, Reanimated 3, Skia where it earns its weight. Smooth on a 5-year-old Android.

02

Offline-first data

WatermelonDB, MMKV, optimistic UI. The app works on the subway, syncs when it lands.

03

Push that doesn’t embarrass you

OneSignal or Expo Notifications, with proper i18n, deep linking, and background handling.

04

Auth + biometrics

Sign in with Apple, Google, biometric unlock. Token rotation, secure storage, no surprises.

05

In-app purchases & paywalls

RevenueCat. Plans, trials, restores, family sharing — the things Apple’s reviewers will check.

06

Crash-free release pipeline

EAS builds, OTA updates, Sentry, store submission automation. Ship in hours, not weeks.

[ Deliverables ]

What you get, shipped.

Concrete artifacts, not slide decks. Every engagement ends with these in your repo, your cloud, your hands.

Production app, both stores

iOS + Android, signed, submitted, with screenshots and metadata.

EAS build pipeline

Internal, beta, and production tracks. OTA updates configured.

Offline-first data layer

Local-first DB, sync engine, conflict resolution, queueing.

Push notification system

Server hooks, deep links, locale-aware payloads, opt-in flows.

Crash + performance dashboard

Sentry + Firebase Performance. Alerts on regression.

Store assets

Icons, screenshots, App Store / Play Store copy in your locales.

[ Typical timeline ]

Eight to twelve weeks to both stores.

Weeks 1–2
Foundation

Architecture, auth, navigation, data layer, design tokens. The app skeleton.

Weeks 3–6
Core flows

The 5–7 screens users will live in. Offline, gestures, polish.

Weeks 7–9
Polish & ops

Push, IAP, deep links, crash reporting, perf budgets.

Weeks 10–12
Submit & ship

Beta with TestFlight + Play internal, fix the inevitable rejection, launch.

[ Stack ]

Tools we reach for, by default.

Not religious about any of these — we'll use what your team can maintain after we leave.

React NativeExpoEASReanimated 3SkiaWatermelonDBTanStack QueryRevenueCatSentryOneSignalTypeScript

One codebase. Both stores.

Tell us about the app — we’ll write you a fixed-scope offer with a real launch date.